After a few days of tweeking I have found my perfect settings
I have the 2.4ghz set to medium power, I now have total coverage around my house.
The 5ghz is set to high power, only 2 of the access points have 5ghz, so hopefully the wifi devices should pick the 5 ghz band over the 2.4 ghz.
While I was googling I found some security advice regarding the wifi encryption.
The security setting controls the type of authentication and encryption used by your Wi-Fi router, which allows you to control access to the network and specify the level of privacy for data you send over the air.
Set to: WPA2 Personal (AES)
WPA2 Personal (AES) is currently the strongest form of security offered by Wi-Fi products, and is recommended for all uses. When enabling WPA2, be sure to select a strong password that can't be guessed by third parties.
If you have older Wi-Fi devices that don't support WPA2 Personal (AES), a good second choice is WPA/WPA2 Mode, also known as WPA Mixed Mode. This mode allows newer devices to use the stronger WPA2 AES encryption, while still allowing older devices to connect with older WPA TKIP-level encryption. If your Wi-Fi router doesn't support WPA/WPA2 Mode, WPA Personal (TKIP) mode is the next best choice.
For compatibility, reliability, performance, and security reasons, WEP is not recommended. WEP is insecure and functionally obsolete. If you must choose between WEP and TKIP, choose TKIP.
Due to serious security weaknesses, the WEP and WPA TKIP encryption methods are deprecated and strongly discouraged. Use these modes only if necessary to support legacy Wi-Fi devices that don't support WPA2 AES and can't be upgraded to support WPA2 AES. Devices using these deprecated encryption methods can't take full advantage of 802.11n performance and other features. As a result, the Wi-Fi Alliance has directed the Wi-Fi industry to phase out WEP and WPA TKIP.
If your security is set to None or unsecured mode, you're using no authentication or encryption. Anyone can join your Wi-Fi network, use your Internet connection, access any shared resource on your network, and read any traffic you send over the network. Using an unsecured network is not recommended.
Changed all mine to WPA2 aes.